Windows Backup – the operation was stopped

During a Windows Backup of System State it failed and I got an error message that “The operation was stopped. Detailed error: A virtual disk support provider for the specified file was not found”

Server is a Windows 2008 R2 Standard with Backup Exec 2010 R2 also installed.

Solution was to change the registry key “HKLM\SYSTEM\CurrentControlSet\Services\FsDepends” from 3 to 0 and reboot. You can also check out this article http://support.microsoft.com/kb/2013544 which relates to Hyper-V, but it solved my problem 🙂

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